HORROR: Mathew Meagher said his colleague was calm despite the nail in his crotch

Nightmare snaps of the horrific hydraulic hand nail gun incident were captured by Mathew Meagher, a colleague of the unfortunate 22-year-old.

Mathew said the bloke, who did not wish to be named, mistimed pulling the trigger while working on a site outside Swansea, Wales on Thursday.

Mathew, 30, also from Swansea, claims the construction worker “wasn't fazed” as he stood with the heavy-duty nail embedded into his nether regions.

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He said: "For want of a better phrase, the nail was pretty much through his d**k.

"He was very, very lucky. If it had been any closer the doctors said it would have gone straight through one of the main arteries.

"He came over to me and said he'd shot himself. Then I saw it. I just went white. I said to him, 'Jesus, what's that?' I couldn't believe it."

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The baby boy has wrinkles on the face, has a very shrunken body and hollow eyes. The baby does not look like a new born at all.

“For want of a better phrase, the nail was pretty much through his d**k”

Mathew Meagher

He added: "He wasn't crying or screaming in pain or anything, he was just dead calm. It hadn't fazed him at all.

"He said his leg was starting to go numb, but his demeanour just wasn't changing."

The lad was rushed to A&E in Swansea and was straight into surgery where doctors removed the nail and he has since made a full recovery.

Mathew, who has his own building company, added: "When we got to A&E we were told to wait, but when we showed them where the nail was he was rushed straight to surgery. He had to go under the knife for them to get it out.

"I've never seen anything like that on the building site before. People couldn't believe it. He wanted me to share the pictures of it on social media.

"It makes your eyes water. Even looking back I'm flinching. I'm very relieved it wasn't me. I had a couple of dates coming up that weekend."

A spokesman for the Health and Safety Executive confirmed the incident had not been reported to them.